XPS 8930, Qualcomm QCA 9377 won't connect to 5GHz Wi-fi

Question

My XPS 8930 will not connect to my 5GHz Wi-fi. It connects to 2.4GHz with no problems. The adapter is listed as a Qualcomm QCA9377. The driver version is 12.0.0.1118 dated 5/19/2021.

When I click on "Connect" for the 5GHz, I'm asked to "Enter the Network Security Key". When I enter the key, the system goes into "verifying and connecting" for 10-15 seconds and then says "can't connect to this network".

Other computers (specifically a Dell laptop) connect to the 5GHz with no problem.

Suggestions? Thanks for the help.

RoHe · Accepted Answer

Have same Qualcomm driver for QCA9377 on my XPS 8930, and it can connect on either 2.4 or 5 GHz.

No offense, but sure you enter the right key for the 5 GHz network? It may not be the same key as for your 2.4 GHz network.

Does the PC list the SSID (name) of your 5 GHz network on the Windows Network & Internet>WiFi screen when you click "Show available networks"? (I see both SSIDs listed, even when not connected to either of them, eg while using Ethernet.)

Have you tried to add the SSID for your 5 GHz network when you click "Manage known networks" on that same WiFi screen?

Have you checked the router's settings to make sure it's set to allow new connections on 5 GHz?

Have you rebooted the router?

EDIT: And keep in mind that while 5 GHz WiFi is faster than 2.4 GHz WiFi, 5 GHz has a shorter range. So is the XPS 8930 just too far from the router to use 5 GHz?

Tesla1856 · Accepted Answer

Most likely you have the passwords set differently for the 2.4ghz and 5ghz Access-Points in the Router.

It could also be a different setting in the router (you don't even mention what make/model it is).

Truthfully, I would just use the 2.4ghz connection if it works. 5ghz isn't that much faster. And you don't seem to care about speed anyway if you are just using WiFi for a stationary desktop. If you want "fast" run a CAT-6 ethernet wire.

Birdman2829 · Answer

Tesla1856,

Thanks for the response.

The password is correct. I checked it on the router settings.

I compared the router settings for the 2.4 GHz and the 5 GHz. They are the same.

The router is the FIOS Gateway G1100. It's the model for the 500mb connection.

You're absolutely right about speeds. I'm not a gamer, so the 2.4 would normally be great. I just can't stand it when something doesn't work. I'm actually connected directly to the router via cable. But I may need to move my XPS soon.

Again, thanks for the help.

-Steve

Birdman2829 · Answer

Password: No offense taken. (Always good to check my assumptions). Password is correct.

The PC does automatically list the SSID - I see both the 2.4 and 5 GHz SSIDs.

I have not tried to add the 5 GHz ID. Since I'm seeing it in the list automatically, would adding it be helpful?

I tried setting up a new connection from a different device - no problem.

I can't reboot the router until this weekend because of work-from-home issues. (If the router doesn't come back up, I've got real problems.) I will try it this weekend and will update then.

The XPS is less than 5 feet from the router.

All of your suggestions are great! I really appreciate it.

-Steve

RoHe · Answer

Good that the PC is seeing the 5 GHz SSID. So I'd now try adding that SSID to the WiFi "Manage known networks" option and see if that helps...

FWIW, I have both SSIDs on my list of know networks in Win 10 22H2. Don't think I ever tried connecting to either the 2.4 or the 5 GHz SSID if it wasn't already on that list.

Birdman2829 · Answer

Rebooting the router took care of the problem.  Thanks!

RoHe · Answer

@Birdman2829  Yea!  Glad the simple fix solved the problem..!

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XPS 8930, Qualcomm QCA 9377 won't connect to 5GHz Wi-fi

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